Jamb Biology 2009 Past Questions and Answers

Question 31:

• JAMB 2009

A woman with the ability to roll her tongue (Tt) marries a man who cannot roll his tongue(tt). what is the probability of each of their children being a tongue roller?

A. 100%
B. 75%
C. 50%
D. 25%

Question 32:

• JAMB 2009

A health condition that is known to have resulted from gene mutation is

A. Haemophilia
B. Colour blindness
C. Sickle-cell anaemia
D. Anaemia

Question 33:

• JAMB 2009

Plants that grow in an area that is neither too wet nor too dry are

A. Xerophytes
B. Mesophytes
C. Epiphytes
D. Hydrophytes

Question 34:

• JAMB 2009

The part of a domestic fowl responsible for preventing heat loss is the

A. Filoplume
B. Contour feather
C. Down feather
D. Quill

Question 35:

• JAMB 2009

Which of the following animals is most adapted for water conservation?

A. Earthworms
B. Mammals
C. Flatworms
D. Insects